What Yemeni defenses? There are none, and there is no story about it.
The NY Times has covered the outrageous Saudi behavior extensively.
"Saudis Try to Starve Yemen Into Submission" https://www.nytimes.com/2017/11/16/opinion/saudi-arabia-yeme...
"Yemen’s War Is a Tragedy. Is It Also a Crime?" https://www.nytimes.com/2017/11/22/world/middleeast/yemen-cr...
"2 Paths for Yemen’s War-Scarred Children: Combat, or Marriage" https://www.nytimes.com/2017/10/09/world/middleeast/yemen-wa...
"‘It’s a Slow Death’: The World’s Worst Humanitarian Crisis" https://www.nytimes.com/interactive/2017/08/23/world/middlee...
"U.S. Fingerprints on Attacks Obliterating Yemen’s Economy" https://www.nytimes.com/2016/11/14/world/middleeast/yemen-sa...
I could keep going. Trying to characterize them as excusing the Saudis somehow seems to misrepresent their reporting.